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WritableStreamDefaultWriter: releaseLock() method - Web APIs | MDN
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WritableStreamDefaultWriter: releaseLock() method
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since May 2022.
Note: This feature is available in Web Workers.
The releaseLock() method of the
WritableStreamDefaultWriter interface releases the writer's lock on the
corresponding stream. After the lock is released, the writer is no longer active. If the
associated stream is errored when the lock is released, the writer will appear errored
in the same way from now on; otherwise, the writer will appear closed.
Syntax
js
releaseLock()
Parameters
None.
Return value
None (undefined).
Examples
js
const writableStream = new WritableStream(
{
write(chunk) {
// …
},
close() {
// …
},
abort(err) {
// …
},
},
queuingStrategy,
);
// …
const writer = writableStream.getWriter();
// …
// release writer's lock on the stream when desired
writer.releaseLock();
Specifications
| Specification |
|---|
| Streams # ref-for-default-writer-release-lock② |
Browser compatibility
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